Example usage for com.google.common.base Preconditions checkNotNull

Introduction

In this page you can find the example usage for com.google.common.base Preconditions checkNotNull.

Prototype

public static <T> T checkNotNull(T reference)

Source Link

Document

Ensures that an object reference passed as a parameter to the calling method is not null.

Usage

From source file:org.opendaylight.neutron.hostconfig.vpp.HostconfigUtil.java

public static Map<String, String> createHostconfigsDataFor(NodeId nodeId, SocketInfo socketInfo) {
    Preconditions.checkNotNull(nodeId);
    Preconditions.checkNotNull(socketInfo);
    JsonObject odlL2 = new JsonObject();
    odlL2.add("allowed_network_types", buildSupportedNetworkTypes());
    odlL2.add("supported_vnic_types", buildSupportedVnicTypes(socketInfo));
    Map<String, String> hostConfigs = new HashMap<>();
    hostConfigs.put(L2_HOST_TYPE, odlL2.toString());
    return hostConfigs;
}

From source file:org.apache.phoenix.flume.SchemaHandler.java

public static boolean createTable(Connection connection, String createTableDdl) {
    Preconditions.checkNotNull(connection);
    Preconditions.checkNotNull(createTableDdl);
    boolean status = true;
    try {//from  w  w w  .j ava  2s.  c o m
        status = connection.createStatement().execute(createTableDdl);
    } catch (SQLException e) {
        logger.error("An error occurred during executing the create table ddl {} ", createTableDdl);
        Throwables.propagate(e);
    }
    return status;

}

From source file:org.xacml4j.v30.types.DoubleExp.java

public static DoubleExp of(Number value) {
    Preconditions.checkNotNull(value);
    return new DoubleExp(value.doubleValue());
}

From source file:org.ros.internal.node.topic.PublisherDeclaration.java

public static PublisherDeclaration newFromNodeIdentifier(NodeIdentifier nodeIdentifier,
        TopicDeclaration topicDeclaration) {
    Preconditions.checkNotNull(nodeIdentifier);
    Preconditions.checkNotNull(topicDeclaration);
    return new PublisherDeclaration(new PublisherIdentifier(nodeIdentifier, topicDeclaration.getIdentifier()),
            topicDeclaration);//from   w w  w  .  jav a2  s.  c om
}

From source file:com.cloudera.oryx.rdf.computation.RDFJobStepConfig.java

public static RDFJobStepConfig fromArgsArray(String... args) {
    Preconditions.checkNotNull(args);
    Preconditions.checkArgument(args.length >= 4);
    return new RDFJobStepConfig(args[0], Integer.parseInt(args[1]), Integer.parseInt(args[2]),
            Integer.parseInt(args[3]));
}

From source file:io.macgyver.plugin.github.GitHubUtil.java

/**
 * github-api does not provide a way to set the default branch until 1.69.  
 * GHRepository.edit() can do it, but is private.  This is a simple workaround
 * that uses reflection to work around the private limitation.
 * /*from   www.j  av  a2  s  . c o  m*/
 * @param repo
 * @param branchName
 * @throws IOException
 */
public static void setDefaultBranch(GHRepository repo, String branchName) throws IOException {
    Preconditions.checkNotNull(repo);
    Preconditions.checkNotNull(branchName);

    try {
        Method editMethod = repo.getClass().getDeclaredMethod("edit", String.class, String.class);
        editMethod.setAccessible(true);

        editMethod.invoke(repo, "default_branch", branchName);
    } catch (IllegalAccessException | InvocationTargetException | NoSuchMethodException e) {
        throw new IOException(e);
    }

}

From source file:com.haoocai.jscheduler.core.tracker.TaskTrackerFactory.java

public synchronized static ZKTaskTracker getTaskTracker(TaskID taskID, ZKAccessor zkAccessor) throws Exception {
    Preconditions.checkNotNull(taskID);
    Preconditions.checkNotNull(zkAccessor);

    Task task = TaskRegisterCenter.task(taskID);
    ZKTaskTracker taskTracker = taskTrackerRegMap.get(taskID);
    if (taskTracker == null) {
        taskTracker = new ZKTaskTracker(zkAccessor, task);
        taskTrackerRegMap.put(taskID, taskTracker);
    }/*from   w w  w . j av  a2 s . co m*/

    return taskTracker;
}

From source file:com.facebook.buck.util.Paths.java

/**
 * @param from must always refer to a directory (it should either be the empty string or end with
 *     a slash).//from w ww.  j av a 2  s .co  m
 * @param to may refer to either a file or a directory
 */
public static String computeRelativePath(String from, String to) {
    Preconditions.checkNotNull(from);
    Preconditions.checkArgument(from.isEmpty() || from.endsWith("/"),
            "Directory path must either be the empty string or end with a slash");
    Preconditions.checkNotNull(to);

    if (from.isEmpty()) {
        return to;
    }

    // Both from and to have the same string prefix through this character index.
    int samePrefixIndex = 0;
    while (true) {
        int slashIndex = from.indexOf('/', samePrefixIndex);
        if (slashIndex < 0) {
            break;
        }

        int indexIncludingSlash = slashIndex + 1;
        if (indexIncludingSlash > to.length()) {
            break;
        }

        String fromPathElement = from.substring(samePrefixIndex, indexIncludingSlash);
        String toPathElement = to.substring(samePrefixIndex, indexIncludingSlash);
        if (fromPathElement.equals(toPathElement)) {
            samePrefixIndex = indexIncludingSlash;
        } else {
            break;
        }
    }

    int directoryDepth = 0;
    for (int charIndex = samePrefixIndex + 1; charIndex < from.length(); charIndex++) {
        if (from.charAt(charIndex) == '/') {
            directoryDepth++;
        }
    }

    return Strings.repeat("../", directoryDepth) + to.substring(samePrefixIndex);
}

From source file:com.google.api.explorer.client.base.NameHelper.java

/**
 * Generate the title for the specified title and name.
 *
 * @param title Title to directly return or {@code null}.
 * @param name Name which should be turned into a title if the title is null.
 * @return Printable title./*from  w  w  w  .j ava  2s .  com*/
 */
public static String generateDisplayTitle(@Nullable String title, String name) {
    return Objects.firstNonNull(title, Preconditions.checkNotNull(name) + " API");
}

From source file:com.metamx.emitter.EmittingLogger.java

public static void registerEmitter(ServiceEmitter emitter) {
    Preconditions.checkNotNull(emitter);
    EmittingLogger.emitter = emitter;
}